6th Ch21 Solar System + Planets

Which planets in the figure have solid surfaces?

• 3 and 8
• 5, 6, 7 and 8
• 1, 2, 3 and 4
• 1, 3 and 8

Tags

NGSS.MS-ESS1-3

How can Saturn be the second largest planet, as well as the lowest in density?

• It is composed mostly of hydrogen and helium.
• It is made of a large, rocky core.
• It is made mostly of water vapor.
• It is composed mostly of methane and ammonia.

Tags

NGSS.MS-PS1-1

Why can't astronomers directly observe the surface of Venus without landing probes there?

• Venus has a clockwise spin

• The surface is covered by thick ice sheets.

• Venus has a high altitude.

• The surface is covered by thick clouds.

This figure shows the effects of the gravitational pull of the Sun on planets. What is represented by the red arrow?

• the orbit of the planet around the Sun
• the path a planet would float into space if there were no gravitational pull
• the rotation of the planet
• the path of light from the Sun

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Why is Venus hot?

• because of the volcanoes
• because of its closeness to the Sun
• because of its position in the solar system
• because of the carbon dioxide in the atmosphere

What do scientist think is the cause of Uranus's tilted orbit?

• It is a result of Uranus's distrance from the Sun
• The temperatures in space cuased the palanet to tilt.
• It collided with another object in space.
• It was created that way.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

What is the largest object in our solar system?

• Jupiter
• Saturn
• Neptune
• The Sun

Tags

NGSS.MS-ESS1-3

What is the Great Red Spot on the surface of Jupiter composed of?

• iron oxide
• dust and ice
• a storm of swirling gases
• methane and ammonia

One astronomical unit is approximately equal to ________.

• the distance from Earth to the Sun
• 75 million km
• the distance from Pluto to the Sun
• 250 million km

Tags

NGSS.MS-ESS1-3

Why does Mercury have no atmosphere?

• becasue of its extreme temperatures
• because of its iron core
• because of its small size and gravitational pull
• because of its rocky cliffs